NURS 6630 PSYCHOPHARMACOLOGY STUDY
GUIDE/NURS 6630 WALDEN ACTUAL EXAM 2024
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QUESTIONS AND ANSWER ALREADY GRADED
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Constitutive activity - ANSWER- in the absence of agonist, the receptor's conformation
is such that it leads to a low level of activity
Antagonists - ANSWER- blocks agonists (both full and partial) from binding to Gprotein-linked receptors, thus preventing agonists from causing maximum signal
transduction and instead changing the receptor's conformation back to the same state
as exists when no agonist is present
Partial agonists - ANSWER- stimulate G-protein-linked receptors to enhance signal
transduction but do not lead to maximum signal transduction the way full againsts do
classic synaptic neurotransmission - ANSWER- stimulation of a presynaptic neuron
(e.g., by neurotransmitters, light, drugs, hormones, nerve impulses) causes electrical
impulses to be sent to its axon terminal. These electrical impulses are then converted
into chemical messengers and released to stimulate the receptors of a postsynaptic
neuron.
The synaptic cleft - ANSWER- is the gap between the presynaptic neuron and the
postsynaptic neuron; it contains proteins and scaffolding and molecular forms of
"synaptic glue" to reinforce the connection between the neurons. Receptors are present
on both sides of this cleft and are key elements of chemical neurotransmission.
the soma - ANSWER- is the command center of the nerve and contains the nucleus of
the cell
axon - ANSWER- Neurons send information via an ____ that forms presynaptic
terminals as the ____ passes by (en passant) or as the ____ ends
axodendritic - ANSWER- synaptic connections between the axon and dendrites of two
neurons
axosomatic - ANSWER- synaptic connections between the axon and the soma
axoaxonic - ANSWER- synaptic connections between axons of the two neurons
The chemical basis of neurotransmission - ANSWER- is how chemical signals are
coded, decoded, transduced, and sent along the way. [Show Less]